AI Article Synopsis
- The study demonstrates that the flexoelectricity-enhanced photovoltaic (FPV) effect significantly improves the solar energy conversion efficiency of a flexible nanocomposite made from Pb(ZrTi)O nanowires (PZT NWs) and polydimethylsiloxane (PDMS).
- The research reveals that when the nanocomposite film is curved, the photovoltaic current increases drastically—by 84.6 times compared to PZT nanoparticles and 27.6 times versus randomly aligned PZT NWs, primarily due to enhanced flexoelectricity in the aligned nanocomposite.
- This work aims to advance the understanding of how nanoparticle shapes influence the FPV effect, potentially paving the way for new applications in flexible energy devices
Article Abstract
In this investigation, we report the flexoelectricity-enhanced photovoltaic (FPV) effect in a flexible Pb(ZrTi)O nanowire (PZT NW) array/PDMS (polydimethylsiloxane) nanocomposite. The simulation result of density functional theory (DFT) indicated that the FPV effect in PZT NWs can be greatly affected by the interactions of the strain gradients with the internal field generated by self-polarization. We found that when the nanocomposite film was curved down, the photovoltaic current of the aligned PZT-NW/PDMS composite increased by 84.6-fold and 27.6-fold compared with the PZT-nanoparticles/PDMS and randomly aligned PZT-NW/PDMS nanocomposites at the same curvature, respectively. This is mainly ascribed to the increased flexoelectricity in the aligned PZT-NW/PDMS nanocomposite. This study will contribute to a full understanding of the influence of nanoparticle shape on the flexophotovoltaic effect of nanocomposites. It will have potential use in nanocomposites for the study of the FPV effect and associated applications.
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| http://dx.doi.org/10.1021/acsnano.2c00450 | DOI Listing |
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